XClutch 15-21 Subaru WRX STi Base 2.5L 10.5in Twin Sprung Organic Clutch Kit

XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilising the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between driveability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analysed to ensure positive pedal feel and increased clamping force. With one of the world's most advanced clutch testing and R&D facilities, in-house vehicle testing and over 30 years of clutch experience, XClutch performance upgrades offer the highest levels of engineering and product development for your street vehicle, 4x4 or dedicated race car. Designed specifically for high horsepower, street driven vehicles, this twin disc clutch utilises sprung organic friction discs for excellent driveability whilst reducing shock loading on the transmission in comparison to the rigid style discs also available. The XClutch 9" range of twin organic disc kits are designed for high horsepower street vehicles that require very high torque capacity but also modulation for street applications.

• Friction Disc, Pressure Plate, Release Bearing, Flywheel - Pilot, Aligning Tool and Technical Service Bulletins (as required)
• Recommended for High Power Street Use
• Heavy Duty, Diaphragm Type
• Twin Disc, Sprung Organic

Upgrade the clutch performance of your 2015-2021 Subaru WRX STI with the XClutch XKSUX23531-2A twin disc clutch kit. Designed for high-horsepower, street-driven vehicles, this performance upgrade delivers high torque capacity while maintaining the modulation and driveability needed for everyday use. The twin sprung organic friction discs help absorb drivetrain shock and reduce transmission loading compared with rigid disc designs, providing smoother engagement during street driving and spirited use.
XClutch developed this kit using advanced pressure plate technology, carefully analyzed pivot point geometry, and a diaphragm design engineered to increase clamping force while maintaining positive pedal feel. The heavy-duty diaphragm pressure plate is matched with sprung organic friction material to balance performance, durability, and controllable engagement. This makes the kit well suited to Subaru WRX STI applications requiring more clutch capacity without sacrificing practical street manners.
The XClutch XKSUX23531-2A kit is part of the XClutch 9-inch twin organic range and is engineered for demanding performance applications. XClutch draws on more than 30 years of clutch development experience, in-house vehicle testing, and advanced clutch research and development to produce upgrades for street vehicles, four-wheel-drive vehicles, and dedicated race cars. The kit includes the friction discs, pressure plate, release bearing, flywheel, pilot and aligning tools, plus technical service bulletins as required. Confirm vehicle configuration and installation requirements before ordering.

Features:

• Application: Fits 2015-2021 Subaru WRX STI models with the 2.5L engine

• Design: Twin disc clutch system with sprung organic friction discs

• Use: Recommended for high-power street applications

• Pressure Plate: Heavy-duty diaphragm design engineered for increased clamping force and positive pedal feel

• Driveability: Sprung organic discs provide smooth modulation and help reduce drivetrain shock loading

• Kit Contents: Includes friction discs, pressure plate, release bearing, flywheel, pilot and aligning tools, and technical service bulletins as required

Fitment:
Subaru Impreza WRX 2004
Subaru Impreza WRX 2005
Subaru Impreza WRX STI 2004
Subaru Impreza WRX STI 2005
Subaru Impreza WRX STI 2006
Subaru Impreza WRX STI 2007
Subaru Impreza WRX STI 2008
Subaru Impreza WRX STI 2009
Subaru Impreza WRX STI 2010
Subaru Impreza WRX STI 2011
Subaru Impreza WRX STI 2012
Subaru Impreza WRX STI 2013
Subaru Impreza WRX STI 2014
Subaru Impreza WRX STI Limited 2007
Subaru Impreza WRX STI Limited 2011
Subaru Impreza WRX STI Limited 2012
Subaru Impreza WRX STI Limited 2013
Subaru Impreza WRX STI Limited 2014
Subaru Impreza WRX STI Special Edition 2010
Subaru Legacy GT spec.B 2007
Subaru Legacy GT spec.B 2008
Subaru Legacy GT spec.B 2009
Subaru WRX STI Base 2015
Subaru WRX STI Base 2016
Subaru WRX STI Base 2017
Subaru WRX STI Base 2018
Subaru WRX STI Base 2019
Subaru WRX STI Base 2020
Subaru WRX STI Base 2021
Subaru WRX STI Launch Edition 2015
Subaru WRX STI Limited 2015
Subaru WRX STI Limited 2016
Subaru WRX STI Limited 2017
Subaru WRX STI Limited 2018
Subaru WRX STI Limited 2019
Subaru WRX STI Limited 2020
Subaru WRX STI Limited 2021
Subaru WRX STI S209 2019
Subaru WRX STI Series.HyperBlue 2016
Subaru WRX STI Type RA 2018